#include "debug.h"
#include "adc1_config.h"
#include "string.h"


u16 volatile ADC_VAL[2]={0,0};

void ADC1_SAMPLES_CONFIG_INIT(void)
{
    DMA_InitTypeDef DMA_InitStructure = {0};
    ADC_InitTypeDef  ADC_InitStructure = {0};
    GPIO_InitTypeDef GPIO_InitStructure = {0};

    //init ADC1 & AFIO Clock
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1  | RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOA | RCC_APB2Periph_AFIO, ENABLE );
    //Config GPIO for ADC
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 ;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOC, &GPIO_InitStructure);
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1 ;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOA, &GPIO_InitStructure);


    //init DMA Clock
    RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
    //DMA1 channel1 configuration ----------------------------------------------
    DMA_DeInit(DMA1_Channel1);
    DMA_InitStructure.DMA_PeripheralBaseAddr = (u32)&ADC1->RDATAR;
    DMA_InitStructure.DMA_MemoryBaseAddr = (u32)ADC_VAL;
    DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
    DMA_InitStructure.DMA_BufferSize =2 ;
    DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
    DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
    DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
    DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
    DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
    DMA_InitStructure.DMA_Priority = DMA_Priority_High;
    DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
    DMA_Init(DMA1_Channel1, &DMA_InitStructure);

    //Enable DMA1 channel1
    DMA_Cmd(DMA1_Channel1, ENABLE);

    //ADC1 configuration ------------------------------------------------------
    ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
    ADC_InitStructure.ADC_ScanConvMode = ENABLE;
    ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
    ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
    ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
    ADC_InitStructure.ADC_NbrOfChannel = 2;
    ADC_Init(ADC1, &ADC_InitStructure);

    //ADC1 regular channel10 configuration
    ADC_RegularChannelConfig(ADC1, ADC_Channel_10, 1, ADC_SampleTime_239Cycles5);
    ADC_RegularChannelConfig(ADC1, ADC_Channel_1, 2, ADC_SampleTime_239Cycles5);

    //Enable ADC1 DMA
    ADC_DMACmd(ADC1, ENABLE);

    //Enable ADC1
    ADC_Cmd(ADC1, ENABLE);

    //Enable ADC1 reset calibaration register
    ADC_ResetCalibration(ADC1);
    //Check the end of ADC1 reset calibration register
    while(ADC_GetResetCalibrationStatus(ADC1));

    //Start ADC1 calibaration
    ADC_StartCalibration(ADC1);
    //Check the end of ADC1 calibration
    while(ADC_GetCalibrationStatus(ADC1));

    //Start ADC1 Software Conversion
    ADC_SoftwareStartConvCmd(ADC1, ENABLE);

}


